Andúril 2 coming to Sofirn - The general Sofirn development thread

That’s why I always have a Folomov A1 thrown into my bag. Takes up about as little space as a folded-up charging cable, and will snap onto anything from a 14500 through 32650 like nothing.

They were on a flash sale at GB recently, <5bux, so I grabbed like 6 of ’em. :stuck_out_tongue:

but you still have to take yet another thing with you. Also, as it does not know anything about that battery (flashlight would), it uses too high current for 14500 and 16340 batteries. I’d probably use it if I did not have anything else, but it’s not my first option. (I will now go buy one… for… science :wink:

Sofirn -
If you make something along the lines of the UT03 or a version of the Q8 with 10,000+ lumens, I would buy one. Either 4x 18650 or 4x 21700 would be fine, UI like a Q8.

About the interface. I like the UI SP33 and Anduril.
It seems to me important that the user has a choice of what to use ramp or fixed modes.

+1 . Agreed on the UI of the SP33. The more I use it, the more I like it! A quick double click to Turbo, and a quick single click back to the brightness level you were in.
And the choice of a good ramping UI is a must I think. :+1:

I do not care about any tint warmer than 5000K.
High CRI… I can take it or leave it. It is not a priority to me.

I do not care about USB charging at all, be it Micro or C.
However, if a light must have it; there should at least be a very substantial tight fitting plug covering the port. Better yet is a covered port like the Zanflare Z1 has!

thanks for all the ideas, we will take them into consideration, more opinions are welcome.

Sofirn, are the user manuals for flashlights available as text or PDF files?

I’d like to edit one down to have a miniature instruction page for my SP32Av2.
It does things I can’t remember.

I just got a C8F 21700 version and a SP33. I actually purchased the SP33 to give to my “Muggle” inlaws as a less expensive alternative to the discontinued Fenix FD-40.

SP33 - I wish turbo was brighter and there doesn’t seem to be all that much difference between the regular levels. I don’t really care for the UI on it. The e-switch is a little hard to locate on this light by touch but I generally like the size of it. I wouldn’t mind though if the head was a bit larger to make it easier to distinguish which end is which by touch. I think Fenix got this right on the FD-40. I don’t know if the slight outward flare at the lens was required for the optics but it definitely makes for a nice to hold light. I would make the crenelations on the head a bit more pronouced so when the light is on and standing on the head, more light spills out.

C8F 21700 - I love the multi-UI as you can choose what you want. The beam pattern kind of stinks with the triple reflector. Based on my Emisar D4 and the reviews I’ve seen for the Fireflies E07, it seems like multi-emitter heads with TIR optics make for nicer (floody) beams. I really like the tint of this light better than the ~6000k SP33 I don’t know what color temp LEDs are used and I haven’t taken it out yet to compare to my Nichia 219 equipped D4. The threads on the tail switch need to be phased so that the rear switch can be reached with the thumb while the mode switch is pressed with the pinky finger.

I’d love to see a light with the UI of the C8F but with 4 or more emitters and an option for a 26650 body as I find this diameter more comfortable to hold. Also, I wouldn’t mind seeing 2x 21700 or 2x26650 bodies if the drivers can handle the extra voltage. Adding a second cell might also enable the lights to maintain turbo longer since the cells aren’t stressed as much.

Samsung LH351D options

Yes, +1 for the LH351D's.

The LH351D 4000K 90+ CRI's look great in the SP36 (just updated tonight). I hit about 4700 lumens on not fully charged VTC6 cells.

+2 for the SST-20s 4000k

Their tint and R9 color rendering is even better than the LH351Ds, are easier to find in China, and a bit cheaper, and are way throwier than the LH351D.

BTW, @TomE, have you received the SST-20s yet?

I would like to see something similar to the Nitecore MH20GT, but with USB C charging with Narsil or ramping UI like current SP32 V2.

I would like to see something similar to the NITECORE LR30 (replaceable 18650 or 21700, and maybe even a version 26650), but in the aluminum body, perhaps slightly larger for a heat sink, and HiCRI Warm or Neutral white.

Hope this helps

No, not yet - don't have a tracking #.

Lumens - how does the SST-20 compare to the LH351D in lumens in real flashlights? SST-20's have to be defined for what they are. They compare great against a 219B or 219C in the 3000K/4000K high CRI version, but it's the SST-20 5000K/6500K that does better in throw than a XPL HI, slightly lower than a XPL HI in lumens. The SST-20 4000K has less lumens than a XP-G2 S4 and about the same throw.

The SST-20 5000K/6500K seems to be a great stock 3V thrower with a slight sacrifice of lumens compared to a XPL HI.

The SST-20 3000K/4000K is also a great thrower for what it is, but considering it's high CRI, it sacrifices lumens and throw to get there.

Using the only real world comparison I know of from here: https://intl-outdoor.com/emisar-d4s-26650-high-power-led-flashlight-p-932.html, though wish they had the LH351D 4000K 90+ CRI in the mix.

From the D4S listing:

OTF lumen output and candela at start-up

XP-G2 S4 : 3300lm / 40,000cd

Nichia 219C : 3000lm / 20,000cd

XP-L HI : 4300lm / 45,000cd

XP-L HD : 5100lm / 27,000cd

SST-20 6500K: 4200lm / 58,000cd

SST-20 5000K: 4000lm / 55,000cd

SST-20 4000K/3000K 95CRI: 3000lm / 41,000cd

You can find more Sofirn manuals on my sharepoint, both in English and German language:

https://drive.google.com/drive/folders/1e1IWuBMaDQu-YjuigGpMwdUPErdUrMhe?usp=sharing

Upcoming manuals are yet to be included and therefore marked in brackets

I’d be interested in a C8F triple 21700 with side e-switch only and shorter tailcap.

Emitters: 4000K-5000K, high CRI (such as SST-20 4000K 95CRI). Bonus points for under BBL.

Colours: dark grey, dark green/khaki, sand/tan, maybe even silver/clear.

UI: I haven’t used the current C8F UI but my preference would be Anduril or NarsilM so I don’t have to remember yet another UI!

To put it into perspective djozz measured a Q8 LH351D w/ bypass at the following numbers:

4990 lm at 3 seconds, 4760 lm at 30 seconds

It isn’t comparable to a D4S directly but it does compare to what you already know about XP-L HD. I’d guess no less than 4,000lm

We just need some apples to apples comparison for lumens and throw. I'm sure there's a big difference between a 5000K 80+ CRI and 4000K 90+ CRI LH351D. That D4S page is the only listing I know that really, in theory, is a great comparative list, though we know nothing of the specifics on those tests - cells, measurement equipment, methods, etc.

That was for a LH351D 4000K 90CRI

The 80CRI has a significant jump in output and the 70CRI even more since it comes in the highest bin:

Here are my own 18650 C8F builds (LH351D 80CRI vs XP-L2 70CRI): What did you mod today? - #5269 by contactcr